leader - a person who rules or guides or inspires others

administrator, executive - someone who manages a government agency or department

administrator, decision maker - someone who administers a business

capo - the head of a branch of an organized crime syndicate

department head - the head of a department

don, father - the head of an organized crime family

superior general, general - the head of a religious order or congregation

general manager - the highest ranking manager

grand dragon - a high ranking person in the Ku Klux Klan

head of household - the head of a household or family or tribe

secretary - a person who is head of an administrative department of government

baas - South African term for `boss'

ganger - the foreman of a work gang

assistant foreman, straw boss - a member of a work gang who supervises the other workers

supervisor - one who supervises or has charge and direction of

important, of import - of great significance or value; "important people"; "the important questions of the day"